]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - fs/pnode.h
vfs: new internal helper: mnt_has_parent(mnt)
[mirror_ubuntu-bionic-kernel.git] / fs / pnode.h
CommitLineData
07b20889
RP
1/*
2 * linux/fs/pnode.h
3 *
4 * (C) Copyright IBM Corporation 2005.
5 * Released under GPL v2.
6 *
7 */
8#ifndef _LINUX_PNODE_H
9#define _LINUX_PNODE_H
10
11#include <linux/list.h>
b2dba1af 12#include "mount.h"
03e06e68
RP
13
14#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
a58b0eb8 15#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
6b3286ed 16#define IS_MNT_NEW(mnt) (!mnt->mnt_ns)
03e06e68 17#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
9676f0c6 18#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)
03e06e68 19
b90fa9ae 20#define CL_EXPIRE 0x01
a58b0eb8 21#define CL_SLAVE 0x02
b90fa9ae
RP
22#define CL_COPY_ALL 0x04
23#define CL_MAKE_SHARED 0x08
796a6b52 24#define CL_PRIVATE 0x10
b90fa9ae
RP
25
26static inline void set_mnt_shared(struct vfsmount *mnt)
27{
495d6c9c 28 mnt->mnt_flags &= ~MNT_SHARED_MASK;
b90fa9ae
RP
29 mnt->mnt_flags |= MNT_SHARED;
30}
31
07b20889 32void change_mnt_propagation(struct vfsmount *, int);
b90fa9ae
RP
33int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
34 struct list_head *);
a05964f3
RP
35int propagate_umount(struct list_head *);
36int propagate_mount_busy(struct vfsmount *, int);
521b5d0c 37void mnt_release_group_id(struct vfsmount *);
97e7e0f7 38int get_dominating_id(struct vfsmount *mnt, const struct path *root);
f47ec3f2
AV
39unsigned int mnt_get_count(struct vfsmount *mnt);
40void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
41 struct vfsmount *);
42void release_mounts(struct list_head *);
43void umount_tree(struct vfsmount *, int, struct list_head *);
44struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
07b20889 45#endif /* _LINUX_PNODE_H */